Question about ASUS GeForce 7800GT, (256 MB) PCI Express Graphic Card

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A8N-SLI Premium & NVIDIA GeForce 7800GT

I have had my NVIDIA GeForce 7800 GT card in my rig for 3 years. I brought the computer to work, cause i needed a faster machine. I bought 2 more monitors, took the old Radeon 7000 card out of my work machine, and made a 4-monitor rig.

Everything was working fine, until i did a windows update (for Media Center - it was the Rollups)
The update also included "new" drivers for my card. So i (stupidly) ran the updates. Then everything crapped out.
My computer rebooted, and the Radeon card was fine. But when i go to adjust the settings on the NVIDIA card, it says that the drivers were written for a previous version of windows. Then it tells me that it can only run in VGA mode, and at that it runs 640x480 with 4-bit colors.
I re-downloaded and reinstalled the drivers for the NVIDIA card, but this time direct from NVIDIA's website. Then it told me it can't configure the card because i don't have administrator access. (Oh, yes i do!)

I pulled the card and put in a GeForce 9600GT. Same problem.
So i pull all the cards and just put in the GeForce 9600GT. Works Fine.
Now i just put in the GeForce 7800GT. Problem.
So i figure it's the card. (By the way, i changed out my 500Watt ATXPSU for a 650Watt ATX PSU along the way)
So i put the 9600 in with the Radeon. Now the Radeon has the problem! (The Radeon is PCI and the NVIDIA's are PCI-Express)
So i pull the Radeon and put in the 7800 with the 9600. The system doesn't get past the "Windows XP" splash screen, before it goes all BSOD.

So right now I'm running on the GeForce 9600GT with the 650Watt ATX. The 7800 and the Radeon Card are sitting next to me, waiting to be thrown in the trash.

Before i go spend more money on another 9600 GT to not have it work, is there any advice someone can give?

(By the way - googling this problem, gives me a Microsoft KB fix for exactly the problem. Except it's for SP2 and i'm running SP3.)

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  • 219 Answers

Sounds like your getting conflicts with running two different card drivers. I've never heard of running a PCI and a PCIe card at the same time.

Posted on Jan 29, 2009

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I went through your bios manual three times & did not come across a setting that gives you the option as you listed above.
What I did come across & triple checked your Manual Pg. 2-28 section 14. Asus EZ selector card connector (144-pin SLI_CON.
When using two PCIE SLI cards make sure the card is seated correctly & set for Dual Video Cards. (extreamly important).
Pg. 4-34, section 4.4.9 SLI mode Recommend kepping to Auto. Than the Bios detects the setting of theSLI selector card.
Refering to the sentance above the manual recommends all settings be set to Auto. Your Bios will do the rest. If for unknown reason you no longer have your manual you can download it from Asus. You'll need to fill in the 3 windows under, Please Select the Product.
Motherboard
Socket939
A8N-SLI Premium
Any more question Drucos, please feel free to post back here!
& please vote...

Feb 22, 2008 | ASUS A8N-SLI Premium Socket 939 NVIDIA...

1 Answer

Sli


Hey, set the bios setting to auto. As far as I know and I have two 8600 GTs in my pc on sli I havent had to do such thing in the control panel. Directx diag reports 1008MB of videomemory for me. (both cards)

Havent had any problems myself Il test that when I get home tonight. Il provide you with more help incase I have to sort the same problem in my own pc.

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1 Answer

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Yes it will work, though a nvidea card may yeild better performance overall in your system.

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1 Answer

Describe your ASUS A8N-SLI Deluxe nVidia video card


Yes, you do. Your board was built with the idea to use 2 graphic boards to get great video


NVIDIA® SLI™technology revolutionizes PC performance by combining multiple PCI Express GPUs in a single and scalable system! Gamers and hardcore enthusiasts know that dual GPUs mean increased, supercharged 3D graphics and performance

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